Zinc vs Radium
| Property | Zn Zinc | Ra Radium |
|---|---|---|
| Atomic number | 30 | 88 |
| Symbol | Zn | Ra |
| Name | Zinc | Radium |
| Category | transition-metal | alkaline-earth-metal |
| Standard Atomic Weight | 65.38 u | 226 u |
| Period | 4 | 7 |
| Group | 12 | 2 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s23d10 | [Rn]7s2 |
| Oxidation states | [-2, 0, 1, 2] | [2] |
| Electronegativity (Pauling) | 1.65 | 0.9 |
| Electron affinity | -0.6 eV | 0.096 eV |
| Density | 7134 kg/m³ | 5000 kg/m³ |
| Melting point | 419.53 °C | 699.85 °C |
| Boiling point | 906.85 °C | 1139.85 °C |
| Discovery year | 1746 | 1898 |